const { Component } = require('react')
const PropTypes = require('prop-types')
const h = require('react-hyperscript')
const genAccountLink = require('../../../../lib/account-link.js')
const Select = require('react-select').default
import Button from '../../../components/ui/button'

class AccountList extends Component {
  getHdPaths () {
    return [
      {
        label: `Ledger Live`,
        value: `m/44'/60'/0'/0/0`,
      },
      {
        label: `Legacy (MEW / MyCrypto)`,
        value: `m/44'/60'/0'`,
      },
    ]
  }

    goToNextPage = () => {
      // If we have < 5 accounts, it's restricted by BIP-44
      if (this.props.accounts.length === 5) {
        this.props.getPage(this.props.device, 1, this.props.selectedPath)
      } else {
        this.props.onAccountRestriction()
      }
    }

    goToPreviousPage = () => {
      this.props.getPage(this.props.device, -1, this.props.selectedPath)
    }

    renderHdPathSelector () {
      const { onPathChange, selectedPath } = this.props

      const options = this.getHdPaths()
      return h('div', [
        h('h3.hw-connect__hdPath__title', {}, this.context.t('selectHdPath')),
        h('p.hw-connect__msg', {}, this.context.t('selectPathHelp')),
        h('div.hw-connect__hdPath', [
          h(Select, {
            className: 'hw-connect__hdPath__select',
            name: 'hd-path-select',
            clearable: false,
            value: selectedPath,
            options,
            onChange: (opt) => {
              onPathChange(opt.value)
            },
          }),
        ]),
      ])
    }

    capitalizeDevice (device) {
      return device.slice(0, 1).toUpperCase() + device.slice(1)
    }

    renderHeader () {
      const { device } = this.props
      return (
        h('div.hw-connect', [

          h('h3.hw-connect__unlock-title', {}, `${this.context.t('unlock')} ${this.capitalizeDevice(device)}`),

          device.toLowerCase() === 'ledger' ? this.renderHdPathSelector() : null,

          h('h3.hw-connect__hdPath__title', {}, this.context.t('selectAnAccount')),
          h('p.hw-connect__msg', {}, this.context.t('selectAnAccountHelp')),
        ])
      )
    }

    renderAccounts () {
      return h('div.hw-account-list', [
        this.props.accounts.map((a, i) => {

          return h('div.hw-account-list__item', { key: a.address }, [
            h('div.hw-account-list__item__radio', [
              h('input', {
                type: 'radio',
                name: 'selectedAccount',
                id: `address-${i}`,
                value: a.index,
                onChange: (e) => this.props.onAccountChange(e.target.value),
                checked: this.props.selectedAccount === a.index.toString(),
              }),
              h(
                'label.hw-account-list__item__label',
                {
                  htmlFor: `address-${i}`,
                },
                [
                  h('span.hw-account-list__item__index', a.index + 1),
                  `${a.address.slice(0, 4)}...${a.address.slice(-4)}`,
                  h('span.hw-account-list__item__balance', `${a.balance}`),
                ]),
            ]),
            h(
              'a.hw-account-list__item__link',
              {
                href: genAccountLink(a.address, this.props.network),
                target: '_blank',
                title: this.context.t('etherscanView'),
              },
              h('img', { src: 'images/popout.svg' })
            ),
          ])
        }),
      ])
    }

    renderPagination () {
      return h('div.hw-list-pagination', [
        h(
          'button.hw-list-pagination__button',
          {
            onClick: this.goToPreviousPage,
          },
          `< ${this.context.t('prev')}`
        ),

        h(
          'button.hw-list-pagination__button',
          {
            onClick: this.goToNextPage,
          },
          `${this.context.t('next')} >`
        ),
      ])
    }

    renderButtons () {
      const disabled = this.props.selectedAccount === null
      const buttonProps = {}
      if (disabled) {
        buttonProps.disabled = true
      }

      return h('div.new-account-connect-form__buttons', {}, [
        h(Button, {
          type: 'default',
          large: true,
          className: 'new-account-connect-form__button',
          onClick: this.props.onCancel.bind(this),
        }, [this.context.t('cancel')]),

        h(Button, {
          type: 'primary',
          large: true,
          className: 'new-account-connect-form__button unlock',
          disabled,
          onClick: this.props.onUnlockAccount.bind(this, this.props.device),
        }, [this.context.t('unlock')]),
      ])
    }

    renderForgetDevice () {
      return h('div.hw-forget-device-container', {}, [
        h('a', {
          onClick: this.props.onForgetDevice.bind(this, this.props.device),
        }, this.context.t('forgetDevice')),
      ])
    }

    render () {
      return h('div.new-account-connect-form.account-list', {}, [
        this.renderHeader(),
        this.renderAccounts(),
        this.renderPagination(),
        this.renderButtons(),
        this.renderForgetDevice(),
      ])
    }

}


AccountList.propTypes = {
  onPathChange: PropTypes.func.isRequired,
  selectedPath: PropTypes.string.isRequired,
  device: PropTypes.string.isRequired,
  accounts: PropTypes.array.isRequired,
  onAccountChange: PropTypes.func.isRequired,
  onForgetDevice: PropTypes.func.isRequired,
  getPage: PropTypes.func.isRequired,
  network: PropTypes.string,
  selectedAccount: PropTypes.string,
  history: PropTypes.object,
  onUnlockAccount: PropTypes.func,
  onCancel: PropTypes.func,
  onAccountRestriction: PropTypes.func,
}

AccountList.contextTypes = {
  t: PropTypes.func,
}

module.exports = AccountList